25 Cool Gadgets For A Hot Summer

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With enough available sunlight, this 10-watt solar charger by Brown Dog Gadgets delivers up to 2 amps of power. According to Brown Dog, the charger is capable of charging an iPhone in 1-2 hours and, with enough time, will even restore the battery of an iPad. This sun-powered gadget unfolds into four sections to a width of 32.5 inches and charges devices via a USB port.